I have learned many new things during this course, these are my top 5 things that I found the most fun and useful. SOH CAH TOA: Before this year, I had no clue that you could find the angles of right triangles without a protractor but now I know that you can just put in…

System word problems often look confusing but when you break them down, they get easier. You need to read the problem 3 times, the first time just read the whole thing. The second time, circle what you think could be clues. The third time you try and solve it. To find where an equal sign…

A system is when 2 or more lines are working together. When the lines touch each other its a solution. A linear equation can have 0, 1 or infinite solutions. 0 solutions is when the lines are parallel and not touching each other, infinite is when they are parallel and touching each other and 1…

                                    When I was writing my equations, I needed to use point slope form because I found the slope between 2 points, and I already had the coordinates. When I needed to use a general form and slope…

Point slope form is another equation describing a linear equation. You can use this when you only have the slope and one coordinate. Point slope form is m(X1-X2) =Y1-Y2 or Y1- Y2= m(X1-X2) If you have a slope of 6 and coordinates (4, -5) your poitn slope form would be 6(X-4)=Y+5 Once you have point…

Slope is what describes the steepness and direction of a line on a graph. To find the slope you use the equation rise over run. Rise is the change of the y value and run is the change in the x value. You need to find 2 nice points on a graph (points that have…

Functions are a type of relations, so all functions are relations but not all relations are functions. Relations can be any two number pairs, but functions are different. For every input number, there is only one output. But one output number can have multiple inputs. For example, if the coordinates are (1,4)(2,6) (3,4) that is…

Domain and range are used to describe a function, or the area used in a graph. Domain is the set of input values (x) and are like the walls. Range is the set of output values (y) and is like the roof and floor. When we are using discrete variables, to find the domain, you…

Linear relations are used to find the relationship between 2 variables (usually on a graph) For example, if you have 5, 8, 11, 14 the relationship would be +3. If you want to find higher numbers in this pattern you insert the numbers in a table of values (usually on the y side) You match…